Elevator-hatchway-door-operating device



M SPINELLO.

ELEVATOR HATCHWAY DOOR OPERATING DEVICE. APPLICATION FILED MAR. 2. 1920.

Patented Oct, 18, 1921.

2 SHEETS-SHEET I.

3 vwemtoz fimbel/ Spinal/0.

M. SPRNELLO.

ELEVATOR HATCHWAY DOOR OPERATING DEVICE.

APPLiCATlON HLED MAR.2, 1920.

Patented Oct. 18, 1921.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

ELEVATOR-HATCHWAY-DOOR-OPERATIN DEVICE.

Specification of Letters Patent.

Patented Oct. 18, 1921.

Application filed March 2, 1920. Serial No. 362,731.

To all whom conceive:

Be it known that I, MATHEW SPINELLO, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Elevator- Hatchway-Door-Operating Devices; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters and figures of reference marked thereon, which, form a part of this specification.

This invention relates to an elevator hatchway door operating device and particularly to means for operatin the door to an open position only after the elevator cage has reached a landing stage. It is also provided with means whereby the door will be automatically shifted to a closed position when the elevator has begun to move away "from the landing, thereby insuring that the door will be closed unless the elevator is in close proximity thereto.

In the illustrated embodiment of the invention means is shown for controlling a pneumatic operated mechanism on the wall of the elevator shaft in response to a pedal actuated device on the elevator cage so that the door may be shifted to an open position, the pedal actuating device being effective to accomplish the desired result only when the floor of the elevator is in aiinement with the actuating mechanism of the air control.

In the drawings,

Figure 1 is a diagrammatic view of the operating mechanism for the door of the pedal actuating device in position to open the pneumatic control.

F 1g. 2 is an end view of the same.

Fig. 3 is a diagrammatic view of the pneumatic control valve or gage and Fig. i is a side elevated view of the pneumatic controi or vaive.

Referrin now to the drawings by numorals, 1 designates the elevator cage arranged to move vertically in a conventionai elevator shaft, and 2 denotes the floor of the cage. Projecting through the door is pedal-rack 3, having at its upper end'a pedal 1-, between which the door l spring 5, n "maliy hoiding the pedai 2 position the through one end of cylinder 29.

The rack portion of the member 8 meshes with a gear or pinion 6, mounted in a bracket 7 carried by the floor 2, the gear or pinion bein; relatively long so that its teeth may also engage a horizontal rack bolt 8 supported at 9 and 10 beneath the floor 2.

The rack bolt 8 is provided with a wedge shaped end 11, for the purpose of riding the cams 12 and 13 on a suitable frame or plate 14, mounted in a convenient manner, but effective to -perate certain mechanism to shift the door 15 to an open or closed position dependent upon the position of the cage. on the wall of the elevator shaft. Between the cams 12 and 13 is a horizontal. shiftable, pneumatic valve control 16 which is supported by the bearings 17 and 18 on the plate 14; the rack 16 being provided with teeth 19 constituting a control for the valve 21 and by referrin to Figs. 3 and 4 it will be observed that t e valve 21 is provided with a stub shaft 22 mounted in the hearing 23 of the bracket 24 carried by the plate 14. It will also be observed that the valve 21 is in axial alinement with the valve casing 25 in which it is received, the valve casing 25 being'mounted on the plate 14. Provided at one end of the segmental rack 23 is an upstanding lever 26 to which is connected a tension spring 27, anchored at 28 to the wail of the cievator shaft. Therefore as the member 16 is moved in one direction the segmental rack 20 is moved in a clock-wise direction against the tension of spring 27, but as soon as the pressure against the member 16 is relieved, thespring will rotate the valve 21 in contra-clockwise direction, the movement of the valve 21 being effective in admitting air to the motor of the door operating mechanism.

The motor is best shown in Fig. 1, as consisting of a cylinder 29, having a piston 30 to which is connected a piston rod 31 passing through a gland or packing box 32 The piston rod 31 is provided with a bifurcated end 33 through which projects a bolt 34 in the slot 35 of the link 36 and the lower end of the crank is pivoted at 39 to a beii-craniz lever 4:0, which is pivoted to the door at i "cvided with a notched head 4-2 to enthe keeper on the hatcinway wait.

' supplied fiuid 11 and it I through the valve or control mechanismcon valve 21 and cylinder-25 mm: as connected to the valve casing 25, in Fig. 3, so it may be sup-.

sisting of the the pipe 44' is shown plied with fluid through a Y-shaped port 45 in the valve member 21 when the branch 46 registers with the supply pipe 47 connected with the underside of the casing 25 and in communication with the cylinder 29. On the end opposite to the end which is connected with the pipe 44 is a pipe .49, and said pipe is attached to the supply pipe 47 through the casing 25 when the part 50 of the-port 45 registers with the pipe 47 and the upper part registers with the port 49. When the pipe 49 is beingsupplied the branch 46 of the port 45 will not be in registration with the port- 47 nor will the upperend be in registration with the port 44, pipe 44 will, however, have registration with port 51 when pipe 49 is being supplied v Lil air and as soon as groove 51 communic ites with a through-port 52 adapted to communicate with pipe 53 the air on the right side of piston 30 in cylinder 29 will be supplied while the air on the left side of piston 30 is exhausted.

As the valve 21 is drawn so that the branch 36 communicates with 47 the pipe 49 will communicate with groove 54% which communicates with through port 44 similar to port 52 and while ports 44 and 55 will be communicating with pipe 53 so that the cylinder of the left end of piston 30 will be in communication with the exhaust.

From the foregoing it will be apparent that I have provided a simple, durable and efficient elevator hatchway door operating device which may be applied to any type of elevators without change of construction thereof.

What 'I. claim-and desire to secure by Letters-Patent is: Y a

.1. In a hatchway'door operating mechanism, a door operating member, a motor connected to said door operating member com prising a cylinder and a reciprocatory member in the cylinder, pipes connected to'opposite ends of said cylinder, a' fluid pressure supply means for alternately connecting the pipes to the supply and to atmosphere, a movable member, a-pedal rack carried thereby, a pinion operated by the pedal rack, a rack bolt meshing with the pinion and engageable with the valve operating mechanism, and means for retracting the rack 2. In a hatchway door operating mechanism, an air operated motor for opening and closing a door, a valve mechanism for effecting reversal of the motor, said mechanism including a valve, 21 spring-actuated lever connected to the valve, a segmental rack on said valve, a sliding rack member engaging the segmental 17ack,.a movable elevator cage, and a foot pedal actuated bolt formoving the sliding rack in one direction to oppose the spring and thereby reverse the valve.

3. n a hatchway door operating mechanism, a door operating member, a latch connected thereto and movable into and out of latching position in response to movement of the door operating member, a motor connected to said door operating member, fluid pressure means for operating the motor, an elevator cage, a pedal rack carried thereby, a pinion operated by the pedal rack, a rack bolt meshing with the pinion and movable into and out of fluid-pressure-supply-means operating position, and means for retracting the rack bolt.

In testimony whereof I aflix m signature.

MATHEW SP NELLO;

bolt. 

